Improved fly brush or fan



YNITED STATES PATENT FFICE.

MARCUS LAVEEN, OF MOORFIELD, VIRGINIA IMP'ROVED FLY BRUSH OR FAN.

Specication forming part of Letters Patent No. 27,814, dated April 10, 1860.

To all whom it may concern,.-

Be it known that I, MARCUS LAVEEN, of Mooriield, in the county of Hardy and State of Virginia, have invented a new and useful Improvement in Automatic Household Fans for Cooling Air and Keeping off Flies and Mosquitoes; and I do hereby declare that the following` is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure l is a perspective view of the ma chine, and Fig. 2 a section in the line f'z/ y.

Similar letters of reference in both the iigures indicate corresponding parts. y The nature of my invention consists in the arrangementotl a ratchet-wheel, vibrating lever, notched wheel, fly wheel, two spiral springs, and one or more fans for the purpose of imparting a vibratory motion to the fan or fans, and thus creating an artificial motion of the air.

The machine is compact and portable, and can be placed on a table or attached tothe ceiling of a room or to a bed-post or any suitable piece of furniture for the purpose of cooling the air and keeping off liies `or mosquitoes.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

The vibratory motion ofthe fans A A is derived from a continuous rotary motion of the ratchet-wheel B by means of the mechanism now to be described.

The ratchet-wheel B is keyed to a vertical shaft E,whicl1 has its bearings in the bottom plate C of the machine andin the bracket D, extending from said bottom plate C. One end of a spiral spring F is fastened to the shaft E and its other end to the bracket D. By applying a suitable key to the square end of shaft E the spring F can be wound up, so as to serve as mot-ive power for the operation of the machine.

A horizontal lever G is balanced on a vertical spindle I, which hasits bearings in bracket II, fastened to the bottom plate C. The lever G is provided with two teeth, one on each side of the spindle I, into which the teeth of the ratchet-wheel B (While revolving in consequence of the impulse of spring F) take alternately, so as to cause the lever G to vibrate upon its spindle.

The extent of the vibrations of lever G is limited by two stops .I J, projecting from the bottom plate C. The end of the lever plays between these two stops.

The lever G imparts vlbratory motion to a horizontal wheel K and to its vertical shaft L, in consequence of the prongs at the end of the lever striking alternately a pin M, which projects from the rim of wheel K between said prongs.

'lhc shaft L has its bearings in the bottom plate C and in a bracket N, fastened to the plate C. A iiy-wheel O is keyed to the shaft L, and two arms and fans A A fastened to its upper end. As the shaft L is caused to vibrate. as above described, the ily-wheel and fans vibrate with it.

A spiral spring P is fastened to the shaft L at one end and to bracket N at the other end in such a manner as to be in equilibrium when the machine is at rest. As the shaft L rotates one way or the other the spring P, which is thereby either compressed or eX- panded, impels the shaft to return, and thus the machine is kept in motion by the combined action of the two spiral springs P and F.

The momentum the fly-wheel acquires during -each vibration serves to increase the extent of the vibrations both ways. The sweep of the fans and their action on the air is thereby considerably increased beyond what would be the case without the application of a fly-wheel.

IVhat I clailn as my invention, and desire to secure by Letters Patent, is-

The arrangement of a ratchet-wheel B', vibrating lever` G, notched wheel K, fly-wheel O, two spiral spring F I), and one or more fans A A, for the purpose of imparting a vibratory motion to the fan or fans, and thus creating an artificial motion of the air, substantially as set forth.

The above specification of my improvement in automatic fly-brushes signed by me this 14th day of March, i860.

MARCUS LAVEEN. XVitnesses:

GOODWIN Y. ATLEE, R. W. FENwIcK. 

